This is Dave Edstrom's personal blog called Photons and Electrons. This blog is about technology, as well as some of my personal interests. I am the CEO/CTO of Virtual Photons Electrons. I was the CTO for MEMEX for three years, the President and Chairman of the Board for the MTConnect Institute from May 2010 to January 2014 and prior to that I spent 23 years at Sun Microsystems.

Friday, April 30, 2010

Below is a snippet from Jobs 1,700 word article. IMHO, the most compelling reason is battery life:

Fourth, there’s battery life.

To achieve long battery life when playing video, mobile devices must decode the video in hardware; decoding it in software uses too much power. Many of the chips used in modern mobile devices contain a decoder called H.264 – an industry standard that is used in every Blu-ray DVD player and has been adopted by Apple, Google (YouTube), Vimeo, Netflix and many other companies.

Although Flash has recently added support for H.264, the video on almost all Flash websites currently requires an older generation decoder that is not implemented in mobile chips and must be run in software. The difference is striking: on an iPhone, for example, H.264 videos play for up to 10 hours, while videos decoded in software play for less than 5 hours before the battery is fully drained.

When websites re-encode their videos using H.264, they can offer them without using Flash at all. They play perfectly in browsers like Apple’s Safari and Google’s Chrome without any plugins whatsoever, and look great on iPhones, iPods and iPads.

About Dave Edstrom

This is Dave Edstrom's personal blog called Photons and Electrons. This is the same name of the blog I had for Sun Microsystems for many years. I am the CEO/CTO for Virtual Photons Electrons, LLC. More info is available at http://VirtualPhotonsElectrons.com I was the CTO for MEMEX for almost three years. More information on MEMEX is at http://MemexOEE.com